CN201887532U - Charging device of locomotive - Google Patents
Charging device of locomotive Download PDFInfo
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- CN201887532U CN201887532U CN2010206421374U CN201020642137U CN201887532U CN 201887532 U CN201887532 U CN 201887532U CN 2010206421374 U CN2010206421374 U CN 2010206421374U CN 201020642137 U CN201020642137 U CN 201020642137U CN 201887532 U CN201887532 U CN 201887532U
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Abstract
本实用新型提供了一种机车充电装置，该充电装置包括：多个并联的具有相同输出功率的主AC/DC转换电源模块以及一个或多个预备AC/DC转换电源模块，每个预备AC/DC转换电源模块的直流输出功率与每个主AC/DC转换电源模块的直流输出功率相同；监控单元，与每个主AC/DC转换电源模块和每个预备AC/DC转换电源模块相连，当一个或Y个主AC/DC转换电源模块出现故障时，监控单元控制一个或Y个预备AC/DC转换电源模块开始工作。本实用新型所提供的机车充电装置利用多个相对小功率的全功能电源模块并联运行代替大功率的电源模块工作，任一台小功率的电源模块出现故障时，都可以由预备的电源模块继续工作，不影响其余电源模块的正常运行，极大地提高了机车供电系统的可靠性。
The utility model provides a charging device for a locomotive, which comprises: a plurality of main AC/DC conversion power modules connected in parallel with the same output power and one or more backup AC/DC conversion power modules, each backup AC/DC The DC output power of the DC conversion power module is the same as the DC output power of each main AC/DC conversion power module; the monitoring unit is connected with each main AC/DC conversion power module and each standby AC/DC conversion power module, when When one or Y main AC/DC conversion power supply modules fail, the monitoring unit controls one or Y backup AC/DC conversion power supply modules to start working. The locomotive charging device provided by the utility model uses a plurality of relatively low-power full-function power supply modules to operate in parallel instead of high-power power supply modules. When any low-power power supply module fails, the spare power supply module can continue work without affecting the normal operation of other power modules, which greatly improves the reliability of the locomotive power supply system.
Description
Technical field
The utility model relates to charging device, relates to a kind of locomotive charging device especially.
Background technology
Plurality of devices in the modern electric locomotive (for example HXD2 locomotive) all needs to adopt storage battery or direct current 110V power supply to charge, direct current 110V power supply wherein can also charge for storage battery, also just say, direct current 110V power supply is the basic power supply of modern electric locomotive, usually this class power supply is called charger.These charger devices adopt the high frequency electric source technology mostly, can utilize constant voltage or current constant mode to power and charge.
Usually, it on the locomotive reliability that improves direct current 110V power supply, adopt the mode of 1+1 backup to work, i.e. main power equipment operate as normal, the identical preparation power-supply device of another configuration with this main power equipment simultaneously is in heat and is equipped with state, changes immediately when its main power equipment breaks down by the preparation power-supply device and powers.But there are two major defects in this mode: the first, because the configuration of two power-supply devices is identical, after main power equipment broke down, the total capacity loss late of electric power system was up to 50%; The second, the backup of electric power system is 100% than (Capacity Ratio), and backup cost is higher.
The utility model content
The utility model aims to provide a kind of locomotive charging device, can solve the capacitance loss rate and the high technical problem of backup cost of the charging system on the existing locomotive.
For this reason, the utility model provides a kind of locomotive charging device, has ac input end and dc output end, and it comprises: a plurality of main AC/DC conversion electric power modules with identical power output are parallel between described ac input end and the dc output end; One or more preparation AC/DC conversion electric power modules are parallel between ac input end and the dc output end, and the dc output power of each preparation AC/DC conversion electric power module is identical with the dc output power of each main AC/DC conversion electric power module; Monitoring unit, link to each other with each preparation AC/DC conversion electric power module with each main AC/DC conversion electric power module, when one or Y main AC/DC conversion electric power module broke down, one or Y of described monitoring unit control prepared AC/DC conversion electric power module and starts working.
Further, locomotive charging device described in the utility model can also comprise: overvoltage protector, and its input links to each other with ac input end; Filter, its input links to each other with the output of overvoltage protector, and its output links to each other with the input of each main AC/DC conversion electric power module with each preparation AC/DC conversion electric power module.
Further, locomotive charging device described in the utility model can also comprise: DC/DC low pressure conversion electric power module, its input links to each other with dc output end.
Further, the monitoring unit of locomotive charging device described in the utility model comprises: detection module, link to each other with main AC/DC conversion electric power module, and detect operating voltage, operating current and the fault message of main AC/DC conversion electric power module in real time; Control module links to each other with detection module and preparation AC/DC conversion electric power module, and this control module is according to the work of the fault message control preparation AC/DC conversion electric power module of the detected main AC/DC conversion electric power module of detection module.
Further, detection module can also be used to detect the operating voltage and the operating current of DC/DC low pressure conversion electric power module.
Further, monitoring unit can also comprise display module, links to each other with detection module, shows operating voltage, operating current, the fault message of main AC/DC conversion electric power module, and the operating voltage and the operating current of DC/DC low pressure conversion electric power module.
Further, locomotive charging device described in the utility model can also comprise the charging cabinet, this charging cabinet comprises: the high-voltage charging cabin, have a plurality of high-voltage power module mounting boxs that are arranged side by side, each main AC/DC conversion electric power module or each preparation AC/DC conversion electric power module can be arranged in the high-voltage power module mounting box; Low pressure charging cabin has a plurality of low-tension supply module mounting panels, and each DC/DC low pressure conversion electric power module can be arranged on the low-tension supply mounting panel.
Further, monitoring unit can be arranged in the high-voltage charging cabin.
Further, can also be provided with external out connector in the high-voltage charging cabin.
Further, can also be provided with external output circuit breaker in the low pressure charging cabin.
Further, the top of charging cabinet can be provided with suspension ring.
The utlity model has following technique effect:
Powerful supply unit is decomposed into a plurality of low power relatively global function power modules, these small-power module parallel runnings, make several pre-stand-by power sources be in hot machine state simultaneously, when any low power power module breaks down, can proceed work by the preparation power module, do not influence the normal operation of all the other power modules, improved the reliability of locomotive power supply system widely.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to accompanying drawings, the utility model is described in further detail.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the electrical equipment arrangement schematic diagram of the locomotive charging device of the utility model preferred embodiment;
Fig. 2 is that the electrical equipment of the locomotive charging device of the utility model preferred embodiment is arranged the Facad structure schematic diagram;
Fig. 3 is an A-A cross section view among Fig. 2;
Fig. 4 is the cabinet backsight structural representation of the utility model preferred embodiment;
Fig. 5 is that the cabinet door assembly electrical equipment of the utility model preferred embodiment is arranged schematic diagram;
Fig. 6 looks schematic diagram for the appliance mounting panel arrangement of components master of the utility model preferred embodiment;
Fig. 7 is the schematic side view of Fig. 6;
The master that Fig. 8 arranges for the high-voltage power module mounting box of the utility model preferred embodiment looks schematic diagram;
Fig. 9 is an A-A generalized section among Fig. 8;
Figure 10 is the schematic rear view that the high-voltage power module mounting box of the utility model preferred embodiment is arranged;
Figure 11 is that the AC/DC power module output mounting panel of the utility model preferred embodiment is arranged schematic diagram;
Figure 12 is that the DC/DC connector mounting panel of the utility model preferred embodiment is arranged schematic diagram; And
Figure 13 is the external electric interfaces schematic diagram of the main circuit of the utility model preferred embodiment.
Embodiment
For the total capacity loss late of the charging system that solves existing locomotive and backup than high technical problem, electric power system provided by the utility model adopts the K+T backup mode, core technology is decomposed into the low power relatively global function power module of K platform with the powerful supply unit of script exactly, these small power electric source module parallel runnings, adopt the standby small power electric source module of catwalk simultaneously, when any small power electric source module breaks down, can adopt the alternative malfunctioning module of standby power supply module in the catwalk to proceed work, not influence the normal operation of all the other power modules.The fault of a module only is 1/K+T for system's loss late, and the capacitance loss rate greatly reduces, and means that the reliability of locomotive power supply system improves greatly.
As depicted in figs. 1 and 2; specific embodiment (charging device with the HXD2C locomotive is an example) for the utility model locomotive charging device; the individual event AC220V alternating voltage that this charging device can be realized the independent winding of locomotive main transformer is exported is supplied with the main AC/DC conversion electric power module of five parallel connections and the preparation AC/DC conversion electric power module of a parallel connection through behind the overvoltage protector respectively again by filter.The output of each main AC/DC conversion electric power module is 110Vdc/22.5A, so the gross output of electric power system is 110Vdc/112.5A.Main AC/DC conversion electric power module adopts the HF switch voltage regulation way, and individual event alternating current 220V input voltage is transformed into direct current 110V output voltage that input and output isolate mutually to satisfy requirements such as charge in batteries, equipment use.Five relatively independent 110V master AC/DC conversion electric power module outputs in parallel, and guaranteed the current-sharing of output, make this charging device be different from traditional centralized charging device fully: first, modular integrated drive generator module has prolonged the charging mean time between failures (MTBF) greatly, the damage of part of module can be replaced by preparation AC/DC conversion electric power module, can not cause whole charging system paralysis, improve the reliability of charging system; The second, modular associating power supply system can shorten mean time to repair, only needs to change malfunctioning module, and is easy to maintenance.
In this electric power system, can also convert the 110V DC power supply of output the DC power supply of 24V to by DC/DC low pressure conversion electric power module, so that provide power supply for equipment such as emergency light, instrument.In fact, DC/DC low pressure conversion electric power module is output as the 24V direct current through the HF switch voltage regulation way equally with the 110V direct current of input, and, the inside of this electric power system can have two relatively independent DC/DC low pressure conversion electric power modules, these two power modules are output in parallel equally, and the power of individual module is 800W, can satisfy the use of 24V load on the locomotive, two converting units are Hot Spare each other, has improved the reliability of work.
In order to realize effective supervision to charging process, locomotive charging device provided by the utility model also comprises monitoring unit, this monitoring unit mainly comprises: detection module, link to each other with main AC/DC power module, detect in real time the operating state of main AC/DC conversion electric power module, comprise fault message, input voltage value, output current value, the charge in batteries electric current of main AC/DC conversion electric power module, the state of DC/DC low pressure conversion electric power module etc.; Control module, the work state information of the main AC/DC conversion electric power module that detects according to detection module, adjust main AC/DC conversion electric power module and be in the work that heat is equipped with the preparation AC/DC conversion electric power module of state, when detection module detected some main AC/DC conversion electric power modules and breaks down, control module will be in preparation AC/DC conversion electric power module that heat is equipped with state according to the fault message control that detection module sends and begin to replace the main AC/DC conversion electric power module work of breaking down.This monitoring unit can also comprise display module, links to each other with detection module, shows the work state information of main AC/DC conversion electric power module, and state demonstration etc. can be provided.This monitoring unit can also provide functions such as failure logging, fault inquiry, Charge Management.
According to locomotive charging device of the present utility model, can also comprise the charging cabinet, be that example describes with HXD2C locomotive charger cabinet below.The first half of this charging cabinet has formed the high-voltage charging cabin, have a plurality of high-voltage power module mounting boxs 2 that are arranged side by side in it, specifically, the quantity of this high-voltage power module mounting box 2 can be five, correspondingly, a main AC/DC conversion electric power module or a preparation AC/DC conversion electric power module just can be installed in each high-voltage power module mounting box, for example, can utilize four high-voltage power module mounting boxs that four main AC/DC conversion electric power modules are installed respectively, utilize a remaining high-voltage power module mounting box that a preparation AC/DC conversion electric power module is installed, when a main AC/DC conversion electric power module breaks down, be in the main AC/DC conversion electric power module that preparation AC/DC conversion electric power module that heat is equipped with state will replace breaking down and carry out work.In order to improve the reliability of this locomotive charging device work, also can in the high-voltage charging cabin, be provided with some high-voltage power module mounting boxs 2 are set more, like this, several preparation AC/DC conversion electric power modules just can be set more, for example, a main AC/DC conversion electric power module can be installed respectively in five high-voltage power module mounting boxs 2, utilize 3 high-voltage power module mounting boxs 2 that three preparation AC/DC conversion electric power modules are installed respectively again, like this, when Y (as two) main AC/DC conversion electric power module breaks down, still have enough preparation AC/DC conversion electric power modules and replace the main AC/DC conversion electric power module work of breaking down, improved the stability of locomotive charging process.A monitoring unit and two external out connectors can also be set in this high-voltage charging cabin.The latter half of charging rack has formed low pressure charging cabin, have a plurality of low-tension supply module mounting panels 6 in this low pressure charging cabin, a DC/DC low pressure conversion electric power module is installed on each low-tension supply module mounting panel 6, in the present embodiment, have two 24V DC power supplier, therefore, in low pressure charging cabin, just can have two low-tension supply module mounting panels 6.Low pressure charging can also comprise in the cabin: be installed in external output circuit breaker on the cabinet door, be installed in electrical equipment load module and the connecting terminal block below electrical equipment load module 8 in the cabinet.
Determining of HXD2C locomotive charging cabinet device electric parameter:
Input voltage:
Output voltage:
Float charge voltage: DC108V ± 1%
Even charging voltage: DC115.2V ± 1%
Control voltage:
Output-current rating: 112.5A
Nominal output current: 100A
Rated output power: 5 * 2.5kW
Determining of HXD2C locomotive charging cabinet device for mechanical interface
Again as shown in Figure 3 and Figure 4, the overall dimension of charging cabinet can be 600mm * 925mm * 1800mm, and a ground connection spiral shell seat 101 is respectively arranged about underframe; The installing hole 102 that it is 20mm that installation underframe 10 front ends have two diameters, the dowel hole 103 that it is 31mm that there are two diameters the rear end of installation underframe 10.The top 30 of charging cabinet can be provided with four suspension ring 31, is used for lifting charging cabinet.
The element of HXD2C locomotive charging device the determining of position in the charging cabinet: the first half of charging cabinet can be used as the high-voltage charging cabin, be provided with a plurality of high-voltage power module mounting boxs 2 in this high-voltage charging cabin, a main AC/DC conversion electric power module both can be set in each high-voltage power module mounting box, a preparation AC/DC conversion electric power module also can be set, in the present embodiment, six high-voltage power module mounting boxs 2 can be set, can utilize five high-voltage power module mounting boxs 2 that main AC/DC conversion electric power module is installed, utilize a remaining high-voltage power module mounting box that preparation AC/DC conversion electric power module is installed.See Fig. 1 and Fig. 2 again, in this high-voltage charging cabin, a monitoring unit 3 and two external out connectors 12 can also be set.The below of this charging cabinet then can be used as low pressure charging cabin, can be provided with 6, one DC/DC low pressure of a plurality of low-tension supply mounting panels conversion electric power module 62 in this low pressure charging cabin and can be arranged on the low-tension supply mounting panel 6.In the present embodiment, two low-tension supply mounting panels 6 can be set, the DC/DC low pressure conversion electric power module 62 of a 24V is set on each low-tension supply mounting panel 6.In this low pressure charging cabin, can also establish an input filter 7.In addition, in this low pressure charging cabin, can also comprise external output circuit breaker 4, electrical equipment load module 9, wherein, externally output circuit breaker 4 can be arranged on the cabinet door 5 of charging cabinet, electrical equipment load module 9 is installed in the low pressure charging cabin, and electrical equipment load module 9 below can also be provided with and specialize in the used connecting terminal block of exterior antenna wiring 8.
As shown in Figure 5, the cabinet door assembly of charging cabinet comprises Hinge for cupboard door 51, storage battery output circuit breaker 52, one-level power supply circuit breaker 53, miniature single-pole circuit breaker 54, door lock 55, handle 56.
As shown in Figure 6 and Figure 7; this electrical equipment load module 9 can comprise current sensor 906 and transducer busbar 907 separately; AC/DC output negative pole busbar 908; fixedly busbar plays the insulator 909 of insulating effect; overvoltage protector 910; single-pole circuit breaker 911, terminal board 912 is used for fixing the guide rail 913 of overvoltage protector, single-pole circuit breaker, terminal board.
As Fig. 8, Fig. 9 and shown in Figure 10, in this high-voltage power module mounting box layout plan, comprise high-voltage power module mounting box 2, main AC/DC conversion electric power module 21, modular connector 22.
Figure 11 is the high-voltage power module output mounting panel layout plan of the utility model preferred embodiment, as shown in figure 11, and comprising high-voltage power module output mounting panel 25 and high-voltage power module output busbar 26.This high-voltage power module output busbar 26 is fixed on the high-voltage power module output mounting panel 25 by insulator 27, and the effect of insulator 27 is to make between busbar and the busbar and electric insulation between busbar and the mounting panel.
As shown in figure 12, DC/DC low pressure conversion electric power module out connector 61 is by being bolted on the connector mounting panel 60.
Determining of HXD2C locomotive charging device electric interfaces:
As shown in figure 13, the external lead terminal of main circuit all is installed on the appliance mounting panel 90 (as Fig. 2) by guide rail, in the appliance mounting panel arrangement of components figure of Fig. 6 shown in the piece number 912.From left to right be respectively the large terminal of alternating current 220V electric pressure, the small terminal of DC24V output, the big line terminals of 110V electric pressure.
The external binding post of main circuit arranging from left to right is described as follows: the leftmost side is two big line binding posts, adopts Weidmulie WFF70 Wei, and Binding post/stud is M8.
301: the interchange input+
303: the interchange input-
All the other big binding posts all adopt Weidmulie WFF35 Wei, and Binding post/stud is M6.
445: filtered interchange input+
446: filtered interchange input-
400:DC110V output-
402: the storage battery input-
416:DC110V output+
401: the storage battery input-
Middle small terminal adopts through-type 4 line terminals of Weidmulie Wei.Model is ZDU4/4AN, and outside lead can get final product directly inserting position, corresponding hole after the insulated hull strip off, does not need the crimping line terminals.
433:DC24V output+
434:DC24V output-
Determining of HXD2C locomotive charger cabinet device fault output point
Fault message of the present utility model can send to the outside by 20 core connectors, and the charger cabinet device is provided with five fault output points altogether.Be respectively charger state, charger fault, 89V undervoltage warning, 82V undervoltage warning, 24V module status.Concrete fault definition is described as follows:
The H1 point position of connector XS-BXH-02 is a charger state output node, and the charging rack is operated in normal operating conditions, and the H1 point position of connector XS-BCH-02 should be 110V; Fault (module failure is arranged) H1 point position to 110V should be 0V.Charging this moment, rack is remaining not to have the module of fault still can operate as normal.The charging rack still can stably be exported DC110V.
The G2 point position of connector XS-BXH-02 is a charger fault output node, and the charging rack is operated in normal operating conditions, and the H1 point position of connector XS-BCH-02 should be 110V; Fault (two module failures are arranged) H1 point position to 110V should be 0V.Charging this moment, rack is remaining not to have the module of fault still can operate as normal.The charging rack still can stably be exported DC110V.Charging this moment, rack is remaining not to have the module of fault still can operate as normal.The charging rack still can stably be exported DC110V.
The LM2 point position of connector XS-BXH-02 is a 89V undervoltage warning output node, when charging rack control voltage is lower than 89V,, monitoring module disconnects when control voltage is lower than 89V when detecting, on the contrary the closing of contact.
The LM1 point position of connector XS-BXH-02 is a 82V undervoltage warning output node, when charging rack control voltage is lower than 82V,, monitoring module disconnects when control voltage is lower than 82V when detecting, on the contrary the closing of contact.
The H2 point position of connector XS-BXH-02 is a 24V module status output node, closure during the 24V module failure, on the contrary the contact disconnects.
Above-described embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; institute is understood that; the above only is an embodiment of the present utility model; and be not used in and limit protection range of the present utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (11)
1. a locomotive charging device has ac input end and dc output end, it is characterized in that, comprising:
A plurality of main AC/DC conversion electric power modules with identical power output are parallel between described ac input end and the described dc output end;
One or more preparation AC/DC conversion electric power modules, be parallel between described ac input end and the described dc output end, the dc output power of each described preparation AC/DC conversion electric power module is identical with the dc output power of each described main AC/DC conversion electric power module;
Monitoring unit, link to each other with the described preparation AC/DC conversion electric power module of each described main AC/DC conversion electric power module and each, when one or Y main AC/DC conversion electric power module broke down, one or Y of described monitoring unit control prepared AC/DC conversion electric power module and starts working.
2. locomotive charging device according to claim 1 is characterized in that, also comprises: overvoltage protector, and its input links to each other with described ac input end;
Filter, its input links to each other with the output of described overvoltage protector, and its output links to each other with the input of the described preparation of each described main AC/DC conversion electric power module and each AC/DC conversion electric power module.
3. locomotive charging device according to claim 1 is characterized in that, also comprises DC/DC low pressure conversion electric power module, and its input links to each other with described dc output end.
4. according to each described locomotive charging device in the claim 1 to 3, it is characterized in that described monitoring unit comprises:
Detection module links to each other with described main AC/DC conversion electric power module, detects operating voltage, operating current and the fault message of described main AC/DC conversion electric power module in real time;
Control module is connected with described detection module and described preparation AC/DC conversion electric power module by signal, and described control module is according to the work of the described preparation of the detected described fault message control of described detection module AC/DC conversion electric power module.
5. locomotive charging device according to claim 4 is characterized in that, described detection module also is used to detect the operating voltage and the operating current of described DC/DC low pressure conversion electric power module.
6. locomotive charging device according to claim 5, it is characterized in that, described monitoring unit also comprises display module, link to each other with described detection module, the operating voltage, operating current, the fault message that show described main AC/DC conversion electric power module, and the operating voltage and the operating current of described DC/DC low pressure conversion electric power module.
7. locomotive charging device according to claim 6 is characterized in that, also comprises the charging cabinet, is provided with in the described charging cabinet:
The high-voltage charging cabin has a plurality of high-voltage power module mounting boxs that are arranged side by side, and a described main AC/DC conversion electric power module or a described preparation AC/DC conversion electric power module can be arranged in the described high-voltage power module mounting box;
Low pressure charging cabin has a plurality of low-tension supply module mounting panels, and a described DC/DC low pressure conversion electric power module is arranged on the described low-tension supply module mounting panel.
8. locomotive charging device according to claim 7 is characterized in that, described monitoring unit is arranged in the described high-voltage charging cabin.
9. locomotive charging device according to claim 8 is characterized in that, described high-voltage charging also is provided with external out connector in the cabin.
10. locomotive charging device according to claim 9 is characterized in that, described low pressure charging also is provided with external output circuit breaker in the cabin.
11. locomotive charging device according to claim 10 is characterized in that the top of described charging cabinet is provided with suspension ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206421374U CN201887532U (en) | 2010-12-03 | 2010-12-03 | Charging device of locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206421374U CN201887532U (en) | 2010-12-03 | 2010-12-03 | Charging device of locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201887532U true CN201887532U (en) | 2011-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206421374U Expired - Fee Related CN201887532U (en) | 2010-12-03 | 2010-12-03 | Charging device of locomotive |
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| CN (1) | CN201887532U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862577A (en) * | 2012-09-11 | 2013-01-09 | 南车株洲电力机车有限公司 | Locomotive control method under storage battery fault mode |
| CN103576034A (en) * | 2013-11-15 | 2014-02-12 | 北京赛德高科铁道电气科技有限责任公司 | Detection device of charger power module |
| CN107959315A (en) * | 2016-10-17 | 2018-04-24 | 北京思维鑫科信息技术有限公司 | The charging system of Intelligent iron shoe |
| CN111409483A (en) * | 2020-04-30 | 2020-07-14 | 博众精工科技股份有限公司 | Charger and charging and battery-replacing station with same |
-
2010
- 2010-12-03 CN CN2010206421374U patent/CN201887532U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862577A (en) * | 2012-09-11 | 2013-01-09 | 南车株洲电力机车有限公司 | Locomotive control method under storage battery fault mode |
| CN103576034A (en) * | 2013-11-15 | 2014-02-12 | 北京赛德高科铁道电气科技有限责任公司 | Detection device of charger power module |
| CN103576034B (en) * | 2013-11-15 | 2016-02-03 | 北京赛德高科铁道电气科技有限责任公司 | The pick-up unit of charger power module |
| CN107959315A (en) * | 2016-10-17 | 2018-04-24 | 北京思维鑫科信息技术有限公司 | The charging system of Intelligent iron shoe |
| CN111409483A (en) * | 2020-04-30 | 2020-07-14 | 博众精工科技股份有限公司 | Charger and charging and battery-replacing station with same |
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